

import pickle,pprint

# 使用pickle模块将数据对象保存到文件
data1 = {'a': [1, 2.0, 3, 4+6],
         'b': ('string', 'string'),
         'c': None}

selfref_list = [1, 2, 3]
selfref_list.append(selfref_list)
output = open('data.pkl', 'wb')

# Pickle dictionary using protocol 0.
pickle.dump(data1, output)

# Pickle the list using the highest protocol available.
pickle.dump(selfref_list, output, -1)
output.close()
#pkl代表二进制文件
f = open('data.pkl','rb')
data = pickle.load(f)
print(data)


pkl_file = open('data.pkl', 'rb')
data1 = pickle.load(pkl_file)
pprint.pprint(data1)





